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Use err(3). Change Synopsis to SYNOPSIS (needed for macro expansion) and

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add SEE ALSO.
This commit is contained in:
Philippe Charnier 1998-01-05 07:19:15 +00:00
parent d3173ea71c
commit cfebbb6c1a
2 changed files with 29 additions and 29 deletions
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22
usr.sbin/procctl/procctl.8
View File

@ -1,16 +1,16 @@
.\" $Id$
.\" $Id: procctl.8,v 1.2 1997/12/07 02:30:43 peter Exp $
.Dd Nov 23, 1997
.Dt PROCCTL 1
.Os FreeBSD
.Sh NAME
.Nm \&procctl
.Nm procctl
.Nd clear procfs event flags
.Sh Synopsis
.Nm \&procctl
.Sh SYNOPSIS
.Nm procctl
.Ar command
.Ar [...]
.Op Ar ...
.Sh DESCRIPTION
.Nm \&procctl
.Nm Procctl
clears the
.Xr procfs 5
event mask used by
@ -20,11 +20,15 @@ the
.Xr procfs 5
events result in a non-killable process.
The options are a list of process ID's;
.Nm \&procctl
.Nm
goes through the list and clears the event masks for each specified process.
.Sh SEE ALSO
.Xr truss 1 ,
.Xr procfs 5
.Sh HISTORY
The
.Nm procctl
command was written by Sean Eric Fagan for FreeBSD.
.Nm
command was written by
.An Sean Eric Fagan
for
.Bx Free .

36
usr.sbin/procctl/procctl.c
View File

@ -30,6 +30,11 @@
*
*/
#ifndef lint
static const char rcsid[] =
"$Id$";
#endif /* not lint */
/*
* procctl -- clear the event mask, and continue, any specified processes.
* This is largely an example of how to use the procfs interface; however,
@ -38,26 +43,22 @@
* procfs code, almost certainly; however, this program will still be useful
* for some annoying circumstances.)
*/
/*
* $Id: procctl.c,v 1.2 1997/12/13 03:13:49 sef Exp $
*/
#include <err.h>
#include <errno.h>
#include <fcntl.h>
#include <signal.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <errno.h>
#include <err.h>
#include <signal.h>
#include <fcntl.h>
#include <unistd.h>
#include <sys/ioctl.h>
#include <sys/pioctl.h>
int
main(int ac, char **av) {
int fd;
int i;
unsigned int mask;
char **command;
struct procfs_status pfs;
for (i = 1; i < ac; i++) {
char buf[32];
@ -67,18 +68,13 @@ main(int ac, char **av) {
if (fd == -1) {
if (errno == ENOENT)
continue;
fprintf(stderr, "%s: cannot open pid %s: %s\n",
av[0], av[i], strerror(errno));
warn("cannot open pid %s", av[i]);
continue;
}
if (ioctl(fd, PIOCBIC, ~0) == -1) {
fprintf(stderr, "%s: cannot clear process %s's event mask: %s\n",
av[0], av[i], strerror(errno));
}
if (ioctl(fd, PIOCCONT, 0) == -1 && errno != EINVAL) {
fprintf(stderr, "%s: cannot continue process %s: %s\n",
av[0], av[i], strerror(errno));
}
if (ioctl(fd, PIOCBIC, ~0) == -1)
warn("cannot clear process %s's event mask", av[i]);
if (ioctl(fd, PIOCCONT, 0) == -1 && errno != EINVAL)
warn("cannot continue process %s", av[i]);
close(fd);
}
return 0;